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  1. J

    Vaillant ecotec pro 831 hot water issues

    Thanks - replacing the flow detector (if that is indeed the issue), would you classify that as a straightforward job ? I've looked at replacement flow detectors and they're in £30-£40 range - so not horribly expensive.
  2. J

    Vaillant ecotec pro 831 hot water issues

    I haven't had any mains pipe work done recently and not aware about any street works. Out of curiousity why would that affect the boiler ? Thanks
  3. J

    Vaillant ecotec pro 831 hot water issues

    Hi, For the past few days I've been having problems with hot water. Central Heating is working fine. I've enabled warmstart - but it doesnt seem to be working. What I've noticed is when I reset the boiler and the "flame" sign shows up and if I leave the hot water tap running I can maintain...
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